Answer:
A
Explanation:
It is giving you the way to be able to identify the said bird, by taking note of it's features, calls, size and more. By taking notes, it allows you to be able to study the bird later on after the bird is long gone.
1.) Riverboat Captain; his vessel (or boat) the S.S Commodore sank off the coast of Florida in 1896, 4 years before his untimely death.
Google it and look pictures of each generation of the chrome casts.